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#satellites

5 posts5 participants0 posts today
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Dr. John Barentine FRAS

"We detected broadband emissions from #Starlink #satellites, predominantly between 54-66 MHz, with flux densities exceeding 500 Jy. These signals are highly polarized and unlikely to originate from ground-based RFI or reflected astronomical sources. Instead, they are likely intrinsic to the satellites, with distinct differences in emission properties observed between satellite generations."

arxiv.org/abs/2504.10032

Stokes I and Stokes V images produced with NenuFAR data, illustrating STARLINK-31034 passing through the FoV. The images were created using data collected between 54 and 66 MHz during the time period from 2024-06-06T16:29:46 to 2024-06-06T16:29:57. Black circles overlaid on the Stokes V image represent the predicted positions of the Starlink satellite, calculated using TLE data. The corresponding times for each position are annotated next to the circles, illustrating the satellite’s motion.
ALT
#Astronomy#RadioAstronomy#RFI
Dr. John Barentine FRAS

Concerning for space traffic management and the potential for space debris generation: the U.S. federal 'budget blueprint' would also end #TraCSS (Traffic Coordination System for Space) as we know it: “The #OMB document … proposes a transfer of the Traffic Coordination System for Space to a nonprofit or a private sector partner, which could be a boon for Elon Musk’s #SpaceX.”

politico.com/news/2025/04/11/w

#Space#Satellites#UnitedStates
MediaFaro News Digest

ESA report warns of space debris and overcrowded orbit.

As the number of satellites increases, so does the amount of space debris in orbit, writes the European Space Agency in its latest the Space Environment Report 2025.

It warns that some orbits are becoming cramped and calls for the removal of space debris.

mediafaro.org/article/20250410

Distribution of space debris in orbit. | Image: ESA
Heise Online · ESA report warns of space debris and overcrowded orbit.By Werner Pluta
#Space#ESA#SpaceEnvironmentReport
Dr. John Barentine FRAS

"Space is vast, almost incalculably huge. And yet we’ve still found ways to pollute the area immediately surrounding our home planet. Whatever it is, we put it there, and now the area just outside of the Earth’s reach is riddled with garbage." (via @Vice)

vice.com/en/article/earths-spa

VICE · Earth’s Space Junk Problem Is Getting Out of ControlBy Luis Prada
#Space#SpaceEnvironment#SpaceDebris
Space Environmentalism

"Space is vast, almost incalculably huge. And yet we’ve still found ways to pollute the area immediately surrounding our home planet. Whatever it is, we put it there, and now the area just outside of the Earth’s reach is riddled with garbage." (via @Vice)

vice.com/en/article/earths-spa

VICE · Earth’s Space Junk Problem Is Getting Out of ControlBy Luis Prada
#Space#SpaceEnvironment#SpaceDebris
Dr. John Barentine FRAS

#TIL that 2029 will be the UN 'International Year of Asteroid Awareness and Planetary Defence' un.org/en/observances/asteroid

Seems like a good time to talk about how vast, orbiting swarms of #satellites and #SpaceDebris imperil our ability to detect potentially hazardous #asteroids.

United NationsInternational Year of Asteroid Awareness and Planetary Defence, 2029 | United NationsInternational Year of Asteroid Awareness and Planetary Defence is the unique occasion of the close approach of 99942 Apophis in 2029 for a worldwide campaign to raise awareness regarding asteroids and to highlight the collaborative efforts being undertaken by the Committee on the Peaceful Uses of Outer Space to mitigate the potential hazard posed by the impact on the Earth of near-Earth objects, and as an excellent opportunity for a global educational campaign about near-Earth objects.
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